| Net income (loss) | |
| Impairments and other valuation losses | |
| Depreciation, depletion and amortization | 361.32M |
| Asset retirement obligation | |
| Deferred income taxes | -265.51M |
| Stock compensation, net | 18.78M |
| Derivative instruments, net | |
| Gain on liquidation of equity investees | |
| Changes in non-current assets and liabilities | 4.12M |
| Other, net | |
| (Increase) decrease in receivables, net | -1.72M |
| (Increase) decrease in oil and gas well equipment and supplies and other current assets | 23.03M |
| Increase (decrease) in accounts payable and other current liabilities | -2.38M |
| Net cash provided by operating activities | |
| Oil and gas expenditures | -485.11M |
| Sales of oil and gas and other assets | |
| Distributions received from equity investees | |
| Sales of short-term investments | |
| Other capital expenditures | -24.01M |
| Net cash used by investing activities | |
| Net Increase (decrease) in bank debt | |
| Decrease in other long-term debt | |
| Financing costs incurred | |
| Dividends paid | -30.24M |
| Issuance of common stock and other | 0 |
| Net cash provided by (used in) financing activities | |
| Net change in cash and cash equivalents | |
| Cash and cash equivalents at beginning of period | 779.38M |
| Cash and cash equivalents at end of period | 698.7M |